1920 Census, Nutley living with family:
Mertins, John, age 34, brother-in-law
Mertins, Emma, age 36, sister-in-law who continued to live with the family at least until 1930 Census
Mertins, Elizabeth, age 76, mother-in-law

1942 Belleville Nutley Directory - living with brother along with other members of the family nearby: